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Initial support for double precision shader instructions. (#963)

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* Implement DADD, DFMA and DMUL shader instructions

* Rename FP to FP32

* Correct double immediate

* Classic mistake
This commit is contained in:
gdkchan 2020-03-03 11:02:08 -03:00 • committed by GitHub
parent 3045c1a186
commit dc97457bf0
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 428 additions and 184 deletions
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16
Ryujinx.Graphics.Shader/Decoders/DecoderHelper.cs
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@ -54,5 +54,21 @@ namespace Ryujinx.Graphics.Shader.Decoders
return BitConverter.Int32BitsToSingle(imm);
}
public static float DecodeD20Immediate(long opCode)
{
long imm = opCode.Extract(20, 19);
bool negate = opCode.Extract(56);
imm <<= 44;
if (negate)
{
imm |= 1L << 63;
}
return (float)BitConverter.Int64BitsToDouble(imm);
}
}
}